chromium/chrome/test/data/extensions/theme/manifest.json

{
   "name": "camo theme",
   "manifest_version": 2,
   "theme": {
      "colors": {
         "frame": [ 71, 105, 91 ],
         "frame_inactive": [ 255, 255, 255 ],
         "ntp_link": [ 36, 70, 0 ],
         "ntp_section": [ 207, 221, 192 ],
         "ntp_text": [ 20, 40, 0 ],
         "toolbar": [ 207, 221, 192 ]
      },
      "images": {
         "theme_frame": "images/theme_frame_camo.png",
         "theme_ntp_background": "images/theme_ntp_background.png",
         "theme_toolbar": "images/theme_toolbar_camo.png"
      },
      "tints": {
         "buttons": [ 0.33, 0.5, 0.47 ]
      }
   },
   "version": "2.0"
}